DE69940395D1 - Optical grating devices with tunable variable grating pitch ("chirp") - Google Patents

Optical grating devices with tunable variable grating pitch ("chirp")

Info

Publication number
DE69940395D1
DE69940395D1 DE69940395T DE69940395T DE69940395D1 DE 69940395 D1 DE69940395 D1 DE 69940395D1 DE 69940395 T DE69940395 T DE 69940395T DE 69940395 T DE69940395 T DE 69940395T DE 69940395 D1 DE69940395 D1 DE 69940395D1
Authority
DE
Germany
Prior art keywords
chirp
grating
devices
tunable variable
pitch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69940395T
Other languages
German (de)
Inventor
Benjamin John Eggleton
John A Rogers
Thomas Andrew Strasser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69940395D1 publication Critical patent/DE69940395D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29395—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device configurable, e.g. tunable or reconfigurable
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
    • G02B6/02204—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using thermal effects, e.g. heating or cooling of a temperature sensitive mounting body
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29322—Diffractive elements of the tunable type
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/011—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass
    • G02F1/0115—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass in optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H01S3/06758—Tandem amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/021—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape
    • G02B6/02104—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape characterised by the coating external to the cladding, e.g. coating influences grating properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02171—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes
    • G02B6/02176—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations
    • G02B6/0218—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations using mounting means, e.g. by using a combination of materials having different thermal expansion coefficients
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0147—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on thermo-optic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/30—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating
    • G02F2201/307—Reflective grating, i.e. Bragg grating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S2301/00—Functional characteristics
    • H01S2301/04—Gain spectral shaping, flattening
DE69940395T 1998-10-30 1999-10-18 Optical grating devices with tunable variable grating pitch ("chirp") Expired - Lifetime DE69940395D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/183,048 US6275629B1 (en) 1998-09-11 1998-10-30 Optical grating devices with adjustable chirp

Publications (1)

Publication Number Publication Date
DE69940395D1 true DE69940395D1 (en) 2009-03-26

Family

ID=22671212

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69940395T Expired - Lifetime DE69940395D1 (en) 1998-10-30 1999-10-18 Optical grating devices with tunable variable grating pitch ("chirp")

Country Status (4)

Country Link
US (1) US6275629B1 (en)
EP (1) EP0997764B1 (en)
JP (1) JP3677183B2 (en)
DE (1) DE69940395D1 (en)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427040B1 (en) * 1998-10-30 2002-07-30 Lucent Technologies Inc. Optical waveguide gratings device with adjustable optical space profile
US6763043B2 (en) * 1998-12-04 2004-07-13 Cidra Corporation Tunable grating-based dispersion compensator
US6792009B2 (en) 1998-12-04 2004-09-14 Cidra Corporation Tunable grating-based channel filter parking device
US6303182B1 (en) * 1999-02-18 2001-10-16 Lucent Technologies Inc. Method for making optical fiber devices having variable thickness metal coatings
US6597822B1 (en) * 1999-04-02 2003-07-22 Ifos, Inc. Multiplexable fiber-optic strain sensor system with temperature compensation capability
US6751367B2 (en) * 1999-04-02 2004-06-15 Ifos, Inc. Multiplexable fiber-optic strain sensor system with temperature compensation capability
EP1065813A3 (en) * 1999-06-30 2005-12-07 Marconi UK Intellectual Property Ltd Optical system
JP4340355B2 (en) * 1999-07-06 2009-10-07 株式会社日立コミュニケーションテクノロジー Wavelength gain characteristic shift filter, optical transmission apparatus and optical transmission method
EP1152268A1 (en) 2000-05-02 2001-11-07 Hiroyuki Hoshino Device for adjustable chirping of in-fibre bragg gratings and method for producing same
AU2002211274A1 (en) * 2000-09-28 2002-04-08 Cidra Corporation Tunable grating-based channel filter parking device
JP2002189134A (en) 2000-10-12 2002-07-05 Matsushita Electric Ind Co Ltd Optical wavelength filter and its manufacturing method
DE60127222T2 (en) 2000-10-24 2007-07-05 Dymo label printers
JP3754615B2 (en) 2000-12-26 2006-03-15 三菱電機株式会社 Grating temperature control device, method for storing temperature control pattern in storage means, method for automatically controlling grating temperature control device, and variable dispersion equalizer
US6980738B1 (en) 2001-01-26 2005-12-27 Ciena Corporation Method and system for providing tunable dispersion compensation
EP1249720A1 (en) * 2001-04-09 2002-10-16 Alcatel Bragg grating filter in optical waveguide
US6671434B2 (en) * 2001-04-17 2003-12-30 Jds Uniphase Corporation Optical performance monitor
US6757461B2 (en) 2001-06-11 2004-06-29 Mitsubishi Denki Kabushiki Kaisha Tunable dispersion compensation device, optical receiver, and optical fiber communication system
US6879755B2 (en) * 2001-07-25 2005-04-12 Teraxion Inc. Optical structure for the compensation of chromatic dispersion and dispersion slope in a light signal
US6941044B2 (en) * 2001-07-25 2005-09-06 Teraxion Inc. Tunable optical structure for the compensation of chromatic dispersion in a light signal
GB2378311A (en) * 2001-08-03 2003-02-05 Marconi Caswell Ltd Tunable Laser
FR2828289B1 (en) * 2001-08-06 2004-01-30 Cit Alcatel TUNABLE BROADBAND DISPERSION COMPENSATOR
JP2003107417A (en) * 2001-09-26 2003-04-09 Matsushita Electric Ind Co Ltd Adaptive dispersion compensation element and its control method
JP2003177253A (en) * 2001-12-10 2003-06-27 Mitsubishi Electric Corp Optical fiber holder, device and method for machining optical fiber grating, and optical fiber grating
US7016567B2 (en) 2001-12-31 2006-03-21 3M Innovative Properties Company System for higher-order dispersion compensation including a delay line
EP1461881A2 (en) * 2001-12-31 2004-09-29 3M Innovative Properties Company Method for higher-order dispersion compensation
US7062123B2 (en) 2001-12-31 2006-06-13 3M Innovative Properties Company System for higher-order dispersion compensation
US6829409B2 (en) 2001-12-31 2004-12-07 3M Innovative Properties Company Method for higher-order dispersion compensation
US7013063B2 (en) 2001-12-31 2006-03-14 3M Innovative Properties Company System for higher-order dispersion compensation including phase modulation
US6778734B2 (en) * 2002-01-15 2004-08-17 Lucent Technologies Inc. Thermally tunable fiber devices with microcapillary heaters
WO2003067313A1 (en) * 2002-02-07 2003-08-14 Teraxion Inc. Power efficient assemblies for applying a temperature gradient to a refractive index grating
US7006730B2 (en) * 2002-03-15 2006-02-28 Lucent Technologies Inc. Multichannel integrated tunable thermo-optic lens and dispersion compensator
US6753118B2 (en) * 2002-03-27 2004-06-22 Fitel Usa Corp. Optical grating fabrication process
EP1499915A2 (en) * 2002-04-29 2005-01-26 E.I. Du Pont De Nemours And Company Effective refractive index chirped bragg gratings
US6721478B2 (en) * 2002-06-04 2004-04-13 Hon Hai Precision Ind. Co., Ltd. Dynamic fiber bragg grating
CA2395905A1 (en) 2002-07-26 2004-01-26 Teraxion Inc. Multi-grating tunable chromatic dispersion compensator
AU2003302351A1 (en) * 2002-11-28 2004-06-18 Avanex Corporation Thermally tunable and/or adjustable filter
US6847763B2 (en) * 2002-12-17 2005-01-25 Fitel U.S.A. Corp Colorless tunable dispersion compensator
US6856731B2 (en) * 2003-04-10 2005-02-15 Lucent Technologies Inc. Heat tunable optical devices with linearity compensation
US7212695B2 (en) * 2003-08-05 2007-05-01 Lucent Technologies Inc. Variable optical delay line with a large continuous tuning range
US7133582B1 (en) 2003-12-04 2006-11-07 Behzad Moslehi Fiber-optic filter with tunable grating
JP4975276B2 (en) * 2005-06-14 2012-07-11 三菱電機株式会社 Variable dispersion compensator and manufacturing method thereof
WO2008001819A1 (en) * 2006-06-29 2008-01-03 Osaka University Dispersion compensator, and dispersion compensating method
KR100910979B1 (en) * 2007-07-27 2009-08-05 (주)켐옵틱스 Tunable Laser Module Based on Polymer Waveguides
US9479280B2 (en) 2011-07-14 2016-10-25 Applied Optoelectronics, Inc. Extended cavity fabry-perot laser assembly capable of high speed optical modulation with narrow mode spacing and WDM optical system including same
US9160455B2 (en) 2011-07-14 2015-10-13 Applied Optoelectronics, Inc. External cavity laser array system and WDM optical system including same
US9236945B2 (en) 2012-12-07 2016-01-12 Applied Optoelectronics, Inc. Thermally shielded multi-channel transmitter optical subassembly and optical transceiver module including same
US8831433B2 (en) 2012-12-07 2014-09-09 Applied Optoelectronics, Inc. Temperature controlled multi-channel transmitter optical subassembly and optical transceiver module including same
US9306671B2 (en) 2012-12-07 2016-04-05 Applied Optoelectronics, Inc. Thermally isolated multi-channel transmitter optical subassembly and optical transceiver module including same
US9614620B2 (en) 2013-02-06 2017-04-04 Applied Optoelectronics, Inc. Coaxial transmitter optical subassembly (TOSA) with cuboid type to laser package and optical transceiver including same
US8995484B2 (en) 2013-02-22 2015-03-31 Applied Optoelectronics, Inc. Temperature controlled multi-channel transmitter optical subassembly and optical transceiver module including same
US9964720B2 (en) 2014-06-04 2018-05-08 Applied Optoelectronics, Inc. Monitoring and controlling temperature across a laser array in a transmitter optical subassembly (TOSA) package
CN107852244B (en) 2015-05-22 2020-06-23 祥茂光电科技股份有限公司 Coaxial Transmitter Optical Subassembly (TOSA) having cuboid type TO laser package and optical transceiver including the same
US9876576B2 (en) 2016-03-17 2018-01-23 Applied Optoelectronics, Inc. Layered coaxial transmitter optical subassemblies with support bridge therebetween
CN107046219B (en) * 2017-04-18 2023-10-24 中国工程物理研究院激光聚变研究中心 Cooling system and cooling method for chirped Bragg grating
US11464451B1 (en) 2020-03-11 2022-10-11 Huxley Medical, Inc. Patch for improved biometric data capture and related processes
DE102021112251B4 (en) 2020-12-29 2023-03-09 Interherence GmbH opto-electronic chip
US11660005B1 (en) 2021-06-04 2023-05-30 Huxley Medical, Inc. Processing and analyzing biometric data

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814056A (en) * 1987-06-23 1989-03-21 Vac-Tec Systems, Inc. Apparatus for producing graded-composition coatings
US5042898A (en) * 1989-12-26 1991-08-27 United Technologies Corporation Incorporated Bragg filter temperature compensated optical waveguide device
US5159601A (en) * 1991-07-17 1992-10-27 General Instrument Corporation Method for producing a tunable erbium fiber laser
JPH06230254A (en) * 1993-02-02 1994-08-19 Sumitomo Electric Ind Ltd Heat resistant glass fiber
US5430817A (en) 1994-03-31 1995-07-04 At&T Corp. Optical systems and devices using long period spectral shaping devices
CA2134958C (en) 1994-11-02 2004-10-12 Raymond Massey Measures Apparatus and method of bragg intra-grating strain control
US5502782A (en) * 1995-01-09 1996-03-26 Optelecom, Inc. Focused acoustic wave fiber optic reflection modulator
US5671307A (en) * 1995-04-10 1997-09-23 Universite Laval Use of a temperature gradient to impose a chirp on a fibre bragg grating
US5757540A (en) * 1996-09-06 1998-05-26 Lucent Technologies Inc. Long-period fiber grating devices packaged for temperature stability
JPH10206620A (en) * 1997-01-21 1998-08-07 Oki Electric Ind Co Ltd Period modulated diffraction grating
JPH10221658A (en) 1997-02-04 1998-08-21 Nippon Telegr & Teleph Corp <Ntt> Variable wave length fiber grating filter
US5841920A (en) * 1997-03-18 1998-11-24 Lucent Technologies Inc. Fiber grating package
US5987200A (en) * 1997-10-27 1999-11-16 Lucent Technologies Inc. Device for tuning wavelength response of an optical fiber grating
US6097862A (en) * 1998-09-11 2000-08-01 Lucent Technologies Inc. Optical fiber grating devices with enhanced sensitivity cladding for reconfigurability

Also Published As

Publication number Publication date
JP2000137197A (en) 2000-05-16
US6275629B1 (en) 2001-08-14
EP0997764B1 (en) 2009-02-11
EP0997764A1 (en) 2000-05-03
JP3677183B2 (en) 2005-07-27

Similar Documents

Publication Publication Date Title
DE69940395D1 (en) Optical grating devices with tunable variable grating pitch (&#34;chirp&#34;)
DE69904130T2 (en) Tunable optical waveguide grating arrangement
DE60037052D1 (en) Optical grating device with variable coating
DE69427715D1 (en) Optical network with compact wavelength division multiplexer
DE69943070D1 (en) Tunable optical filter
DE69829038D1 (en) Tunable optical filter
DE69434719D1 (en) Optical holographic devices
DE69728955D1 (en) Athermalized coded optical waveguide device
DE69729584D1 (en) MULTIFOCALE OPTICAL COMPOSITLINES
DE69937641D1 (en) OPTICAL COMPONENTS
DE69636454D1 (en) HIGHLY EFFICIENT OPTICAL DEVICES
DE69939647D1 (en) OPTICAL FILM
DE69714021T2 (en) LIGHT MICROSCOPE WITH ACOUSTOOPTICALLY TUNABLE FILTERS
DE69917007D1 (en) WAVELENGTH MULTIPLEXER / DEMULTILEXER OPTICAL DEVICE
DE69514358D1 (en) OPTICAL COMPONENT ARRANGEMENT
DE69908294D1 (en) OPTICAL SWITCHING DEVICE
DE69800760T2 (en) Magnetically tunable optical fiber grids
DE69526174D1 (en) Optical waveguide device
DE69415238D1 (en) Optical waveguide device
DE69909697D1 (en) Tunable optical fiber grating with distributed feedback
DE69824551D1 (en) Optical switching element controlled by pump light
DE69424471D1 (en) Optical modulation device
DE69420358D1 (en) Tunable optical waveguide grating arrangement
DE69907575D1 (en) Optical waveguide
DE60128847D1 (en) Optical waveguide grating arrangement with tunable lattice constant

Legal Events

Date Code Title Description
8364 No opposition during term of opposition